›› 2017, Vol. 37 ›› Issue (2): 110-116.doi: 10.16708/j.cnki.1000-758X.2017.0044

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Analysisoflong-perioddriftcharacteristicsfororbitconfigurationoftheTianqinMission

 WAN  Xiao-Bo, ZHANG  Xiao-Min*, LI  Ming   

  1. DFHSatelliteCoLTD.,Beijing100094,China
  • Received:2017-03-17 Revised:2017-04-18 Online:2017-06-25 Published:2017-05-18

Abstract: InordertorealizethelongtermsteadydriftofTianqinMission′sorbitalconfigurationandmeetstabilityindex,initialoptimuminstantaneousorbitalelementsweresearchedbytheoptimizationalgorithm.Firstly,orbitaldynamicsmodelconsideringperturbationwassetup.Secondly,theorbitalconfigurationofequilateraltriangledriftedforlong-periodbytheorbitalelements′varietywasresearchedandtheorbitalelementsleadingtotheorbitalconfigurationofequilateraltriangledriftedinalongperiodweremadeasparameterstobeoptimized.Particleswarmintelligentoptimizationalgorithm(PSO)wasappliedtooptimizeparametersselectedforoptimization.Finally,thesimulationresultsshowthatthearmlengthchangeslessthan1500km,thebreathanglechangeslessthan1.5degreesandthevelocityofthearmlengthvarietychangeslessthan10m/sinnaturaldriftingoffouryearswithoutorbitalmaneuver.Theresultsmeettheinitialindicatorsoftheorbitalconfiguration.

Key words: TianqinMission, orbitalconfiguration, longtermdrift, stability, particleswarmoptimization